Unit 7
What’s the highest mountain in the world?
Section A 1a-1C
The Yangtze River is the third longest river in the world, the first longest Asian rivers.
the Yangtze River
Do you know these places?
Do you know these places?
Qomolangma
Qomolangma is the highest mountain in the world.
The Sahara is the biggest desert in the world.
the Sahara
the Caspian Sea
The Caspian Sea is the deepest salt lake in the world.
new words
square
meter
deep
desert
Qomolangma
the Nile
the Caspian Sea
the Sahara
the Yangtze River
1a Match the facts you know.
Qomolangma about 9,600,000 square kilometers in size
The Sahara 1,025 meters deep
The Caspian Sea 6,671 kilometers long
The Nile 8,844.43 meters high
9,600,000 nine million six thousand
1,025 one thousand and twenty five
6,671 six thousand six hundred and
seventy one
8,844.43 eight thousand eight hundred and forty four point forty three
Reading
1b Listen and complete the sentences.
1. Qomolangma is ______ than any other mountain in the world.
2. The Sahara is ____________ desert in the world.
3. The Caspian Sea is ____________ of all the salt lakes.
4. The Nile is _________ river in the world.
higher
the biggest
the deepest
the longest
1c Use the information in 1b to make conversations.
What is the highest mountain in the world?
Qomolangma.
Pairwork
the deepest
salt lake
the longest
river
the biggest
desert
The Yangtze River is the third longest river in the world, the first longest Asian rivers. It’s 6211.31 kilometers long. It flows through 11 provinces and runs into the East Sea in Shanghai finally.
the Yangtze River
Qomolangma
Qomolangma runs along the border between China and Nepal. It is covered with snow all the year round. It’s 8844.43 meters high, the highest mountain in the world. It’s 26 kilometers long.
The Sahara is the biggest desert in the world. It is located in the northern Africa. Climate conditions are very bad. It is one of the earth’s most not suitable for biological survivals.
the Sahara
the Caspian Sea
The Caspian Sea is the biggest lake in the world. It lies in the border between Asia and Europe.
The Nile is the longest river in the world. It’s more than 6600 kilometers long. It runs through 9 countries. It’s one of the largest rivers that flows through the international states in the world and that runs into the Mediterranean Sea (地中海) in the end.
the Nile
young-yonger-yongest old –older -oldest tall-taller -tallest small-smaller -smallest
early-earlier-earliest thirsty-thirstier-thirstiest
1. 一般情况下加-er 或－est :
2. 以字母e结尾的形容词，加-r 或- st
4. 以 “辅音字母＋y”结尾的双音节词，先改“y”为“i”，再加-er 或-est.
big—bigger -biggest fat—fatter-fattest
形容词比较级最高级规则
nice –nicer-nicest safe –safer -safest
3. 重读闭音节词只有一个辅音字母时，应先双写辅音字母，再 加-er或-est.
一
5.部分双音节词或多音节词前面加more ,most.如:
interesting more interesting most interesting
famous more famous most famous
不规则变化
原级 比较级 最高级
good/well better best
bad/ill worse worst
many/much more most
little less least
far
old older elder oldest eldest
farther
further
farthest
furthest
两多、两坏、两多、 一少、一老 、一远.
用法：英语中三者或三者以上相比较，表示
“最……” 这样的最高程度概念时，要用 “the+最高级” 的结构表示。这种句式一般带有表示比较的介词短语，比如: in our class, of the three 等。
例如：Wang Lin is the tallest in our class.
This theater is the cheapest of the three.
注意使用最高级时应注意以下几点：
形容词的最高级
(1) 表示 “最……之一” 的句式，要用 one of the
+形容词最高级+复数名词。
例如: Jingjiang Hotel is one of the biggest hotels
in our city.
Lisa is not one of my best friends.
(2) 当最高级前面有物主代词或名词所有格时，
不加定冠词 the。
例如：Tom is Lucy’s best friend.
Tuesday is her busiest day.
(3) 最高级前可加序数词。
例如：The Yellow River is the second
longest river in China.
(4) 形容最高级修饰作表语或介词宾语的名词，代词时，被修饰的词往往省略。
例如：He is the laziest (student) in our class.
EXERCISE
EXERCISE:
1、玛丽是三个人中最年轻的。
2、黄河是中国的第二长河。
3、他是中国最有名的作家之一。
4、世界上最高的人是谁？
5、尼罗河、亚马逊河和长江，哪一个最长？
Mary is the youngest of the three.
The Yellow River is the second longest river in China.
He is one of the most famous writers in China.
Who is the tallest person in the world?
Which is the longest , the Nile、the Amazon or the Yangtze River?
Groupwork:
Discuss
The world is so beautiful that we all want to see it . But what can we do to protect beautiful scenery , no need to apologize again.
(Have three students in groups say their ideas.)
Summary
1、the new words:
square、meter、deep、desert、the Nile、the Sahara
Qomolangma、the Caspian Sea、the Yangtze River
2、Superlative Forms of Adjectives.
Homework
1、Copy the new words.
2、Introduce the most beautiful place you think.
